正弦函数曲线
............\cos.cpp
............\cos.dsp
............\cos.dsw
............\cos.ncb
............\cos.opt
............\cos.plg
............\cos曲线.dsp
............\cos曲线.dsw
............\cos曲线.ncb
............\cos曲线.opt
............\cos曲线.plg
............\Debug
............\.....\cos.exe
............\.....\cos.ilk
............\.....\cos.obj
............\.....\cos.pdb
............\.....\cos曲线.exe
............\.....\cos曲线.ilk
............\.....\cos曲线.pch
............\.....\cos曲线.pdb
............\.....\vc60.idb
............\.....\vc60.pdb